公开(公告)号：US06531049B1

公开(公告)日：2003-03-11

申请号：US09381714

申请日：1999-09-28

申请人： Akio Kariya ,  Takumi Hamajima ,  Satoshi Morimoto ,  Toshiaki Ishimaru ,  Akihide Kakutani

发明人： Akio Kariya ,  Takumi Hamajima ,  Satoshi Morimoto ,  Toshiaki Ishimaru ,  Akihide Kakutani

IPC分类号： C25F500

CPC分类号： C25F5/00

摘要： An aqueous solution (20) of an alkali hydroxide is stored and held in a tank (1). An electrode (5) is disposed in the tank (1), and a member (11) coated with a Ti-derived film is disposed in the tank (1) so as to be surrounded with the electrode (5). In this state, a power source (6) applies a negative potential to the electrode (5) and a positive potential to the member (11) to flow electricity between the electrode (5) and the member (11) immersed in the aqueous solution (20). Thus, the Ti-derived film coated on the surface of the member (11) is chemically removed by the aqueous solution (20).

摘要翻译： 将碱金属氢氧化物的水溶液（20）储存并保存在罐（1）中。 一个电极（5）设置在罐（1）中，并且涂有Ti衍生膜的部件（11）被设置在罐（1）中以被电极（5）包围。 在该状态下，电源（6）对电极（5）施加负电位，向构件（11）施加正电位，在电极（5）和浸没在水溶液中的构件（11）之间流动 （20）。 因此，通过水溶液（20）化学除去涂布在构件（11）的表面上的Ti衍生的膜。